efficient
adjective
uk/ɪˈfɪʃənt/ ususing resources such as time, materials, or energy well without wasting any:
an efficient method/use/way
The car combines an efficient 2.3-liter four-cylinder gas engine with a battery pack and electric motor.
He is a leading proponent of broad changes in the Postal Service to make it more efficient and competitive.
working well and quickly:
an efficient operation/service/system
The lawyers working on the case were skilled, efficient, and fair.
efficiently
adverb /ɪˈfɪʃəntli/
Incentives like these encourage airlines to move the maximum number of passengers as quickly and efficiently as possible.
Compare
inefficient
See also
cost-effective
fuel-efficient